Imaging Lens System

This application claims the benefit under 35 USC 119 (a) of Korean Patent Application No. 10-2025-0032003 filed on Mar. 12, 2025, in the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes.

The present disclosure relates to an imaging lens system capable of being thinned.

A portable electronic device may include a camera module for capturing still images or recording moving images. For example, the camera module may be mounted in a mobile phone, a laptop computer, a game machine, or the like. The portable electronic device may be generally manufactured in a thin or compact form to improve portability for a user. However, the camera module including a plurality of lenses is difficult to be thinned due to convex or concave shapes of the lenses. In addition, the camera module including the lenses having convex and concave shapes inevitably causes chromatic aberration due to the lens shapes, making aberration correction difficult.

The above information is presented as background information only to assist with an understanding of the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with regard to the disclosure.

This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In one general aspect, an imaging lens system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially disposed from an object side. At least one of the first lens to the fifth lens is a metalens.

The metalens may have positive refractive power.

The first lens or the second lens may be the metalens.

The fourth lens may be the metalens.

At least one of the first lens to the fifth lens may have negative refractive power.

One pair of adjacent lenses among the first lens to the fifth lens may each have positive refractive power.

One of the second lens to the fourth lens may have negative refractive power.

The metalens may include a first region corresponding to a blue wavelength, a second region corresponding to a green wavelength, a third region corresponding to a red wavelength, and a fourth region corresponding to a green wavelength.

The first region and the second region may be respectively symmetrical to the third region and the fourth region about an optical axis.

In another general aspect, an imaging lens system includes a lens group disposed between an object and an image plane, wherein the lens group includes at least one metalens. The lens group may include a lens having negative refractive power.

The imaging lens system may satisfy the following conditional expression: 0.60<TTL/2Y<0.80, where TTL is a distance from an object-side surface of a foremost lens disposed foremost in the lens group to the image plane and 2Y is a diagonal length of the image plane.

The imaging lens system may satisfy the following conditional expression: 0.4<BFL/f<1.0, where BFL is a distance from an image-side surface of a rearmost lens disposed rearmost in the lens group to the image plane and f is a focal length of the imaging lens system.

Other features and aspects will be apparent from the following detailed description, the drawings, and the claims.

Throughout the drawings and the detailed description, unless otherwise described, the same reference numerals refer to the same elements. The drawings may not be to scale, and the relative size, proportions, and depiction of elements in the drawings may be exaggerated for clarity, illustration, and convenience.

Hereinafter, while examples of the present disclosure will be described in detail with reference to the accompanying drawings, it is noted that examples are not limited to the same.

The following detailed description is provided to assist the reader in gaining a comprehensive understanding of the methods, apparatuses, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and/or systems described herein will be apparent after an understanding of this disclosure. For example, the sequences of operations described herein are merely examples, and are not limited to those set forth herein, but may be changed as will be apparent after an understanding of this disclosure, with the exception of operations necessarily occurring in a certain order. Also, descriptions of features that are known in the art may be omitted for increased clarity and conciseness.

The features described herein may be embodied in different forms, and are not to be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways of implementing the methods, apparatuses, and/or systems described herein that will be apparent after an understanding of this disclosure.

Throughout the specification, when an element, such as a layer, region, or substrate is described as being “on,” “connected to,” or “coupled to” another element, it may be directly “on,” “connected to,” or “coupled to” the other element, or there may be one or more other elements intervening therebetween. In contrast, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, there can be no other elements intervening therebetween.

As used herein, the term “and/or” includes any one and any combination of any two or more of the associated listed items; likewise, “at least one of” includes any one and any combination of any two or more of the associated listed items.

Although terms such as “first,” “second,” and “third” may be used herein to describe various members, components, regions, layers, or sections, these members, components, regions, layers, or sections are not to be limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or section from another member, component, region, layer, or section. Thus, a first member, component, region, layer, or section referred to in examples described herein may also be referred to as a second member, component, region, layer, or section without departing from the teachings of the examples.

Spatially relative terms, such as “above,” “upper,” “below,” “lower,” and the like, may be used herein for ease of description to describe one element's relationship to another element as shown in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as being “above,” or “upper” relative to another element would then be “below,” or “lower” relative to the other element. Thus, the term “above” encompasses both the above and below orientations depending on the spatial orientation of the device. The device may also be oriented in other ways (rotated 90 degrees or at other orientations), and the spatially relative terms used herein are to be interpreted accordingly.

The terminology used herein is for describing various examples only, and is not to be used to limit the disclosure. The articles “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms “comprises,” “includes,” and “has” specify the presence of stated features, numbers, operations, members, elements, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, operations, members, elements, and/or combinations thereof.

Due to manufacturing techniques and/or tolerances, variations of the shapes shown in the drawings may occur. Thus, the examples described herein are not limited to the specific shapes shown in the drawings, but include changes in shape that occur during manufacturing.

Herein, it is noted that use of the term “may” with respect to an example, for example, as to what an example may include or implement, means that at least one example exists in which such a feature is included or implemented while all examples are not limited thereto.

In describing the present disclosure below, terms indicating components of the present disclosure will be named in consideration of functions of each component. Therefore, the terms should not be understood as being limited technical components of the present disclosure.

The features of the examples described herein may be combined in various ways as will be apparent after an understanding of this disclosure. Further, although the examples described herein have a variety of configurations, other configurations are possible as will be apparent after an understanding of this disclosure.

An aspect of the present disclosure is to provide an imaging lens system capable of thinning of a camera module.

An aspect of the present disclosure is to provide an imaging lens system capable of correcting chromatic aberration of a camera module.

An aspect of the present disclosure is to provide an imaging lens system capable of improving polychromatic light transmittance of a camera module.

In the present specification, a foremost lens or a first lens indicates a lens closest to an object (or a subject), and a rearmost lens or a fifth lens indicates a lens closest to an image plane (or an image sensor). In the present specification, the radius of curvature, thickness, a total track length (TTL: a distance from an object-side surface of the first lens to the image plane), ImgHT (or Y: a height of the image plane), and focal length of the lenses may be represented by millimeters (mm).

The thickness of the lens, spacing between lenses, and the TTL are distances along an optical axis of the lenses. In addition, in a description of a shape of the lens, one convex surface of the lens may indicate that a paraxial region of a corresponding surface is convex, and one concave surface of the lens may indicate that the paraxial region of a corresponding surface is concave. Therefore, although it is described that one surface of the lens is convex, an edge portion of the lens may be concave. Similarly, although it is described that one surface of the lens is concave, an edge portion of the lens may be convex.

An imaging lens system according to the present specification may be mounted in all kinds and types of camera devices. For example, the imaging lens system may be mounted in a mobile terminal, a laptop computer, or a camera device for a virtual reality (VR) apparatus. However, the types of camera devices in which the imaging lens system according to the present disclosure may be mounted are not limited to the above devices. For example, the imaging lens system may also be mounted in a camera device for front and rear monitoring that is installed in a vehicle or a camera device for autonomous driving.

An imaging lens system according to a first aspect of the present disclosure may include a plurality of lenses. For example, the imaging lens system according to this aspect may include a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially disposed from an object side. However, a configuration of the imaging lens system according to this aspect is not limited to the first to fifth lenses. The imaging lens system according to this aspect may include at least one metalens. For example, at least one of the first to fifth lenses may be a metalens.

An imaging lens system according to a second aspect of the present disclosure may include a lens group including at least one metalens. For example, the lens group according to this aspect may include five lenses, and at least one of the five lenses may be a metalens. In the imaging lens system according to this aspect, the lens group may be disposed between an object and an image plane. More specifically, the lens group according to this aspect may be disposed at a predetermined distance from the image plane.

An imaging lens system according to a third aspect of the present disclosure may include at least one metalens. For example, the imaging lens system according to this aspect may include at least two metalenses. The imaging lens system according to this aspect may include a metalens having a unique form. For example, the metalens according to this aspect may include a first region corresponding to a blue wavelength, a second region corresponding to a green wavelength, a third region corresponding to a red wavelength, and a fourth region corresponding to a green wavelength sequentially disposed in a clockwise direction or a counterclockwise direction.

An imaging lens system according to a fourth aspect of the present disclosure may include at least one metalens. For example, the imaging lens system according to this aspect may include at least two metalenses. The imaging lens system according to this aspect may include a metalens having a unique form. For example, the metalens according to this aspect may include a first region corresponding to a blue wavelength, a second region corresponding to a green wavelength, and a third region corresponding to a red wavelength. In addition, the metalens according to this aspect may further include a unique region. For example, in the metalens according to this aspect, the second region corresponding to a green wavelength may be larger than the first region corresponding to a blue wavelength. In another example, in the metalens according to this aspect, the second region corresponding to a green wavelength may be larger than the third region corresponding to a red wavelength. In yet another example, in the metalens according to this aspect, the second region corresponding to a green wavelength may be equal to or larger than a sum of the first region and the third region.

An imaging lens system according to a fifth aspect of the present disclosure may satisfy at least one of the following conditional expressions:

In the above conditional expressions, f indicates a focal length of the imaging lens system, f1 indicates a focal length of the first lens, f2 indicates a focal length of the second lens, f3 indicates a focal length of the third lens, f4 indicates a focal length of the fourth lens, f5 indicates a focal length of the fifth lens, TTL indicates a distance from an object-side surface of the first lens (or a foremost lens disposed foremost in the lens group) to the image plane, a back focal length (BFL) indicates a distance from an image-side surface of the fifth lens (or a rearmost lens disposed rearmost in the lens group) to the image plane, and 2Y indicates a diagonal length of the image plane (2 lmgHT).

The above-described conditional expressions may indicate numerical ranges for optimizing refractive powers of the first to fifth lenses and a size of the imaging lens system in an optical axis direction.

An imaging lens system according to a sixth aspect of the present disclosure may satisfy at least one of the following conditional expressions:

In the above conditional expressions, fM indicates a focal length of a foremost metalens disposed closest to an object in the lens group (or the first to fifth lenses) included in the imaging lens system, fMg indicates a focal length of the foremost metalens in a green wavelength, MS1 indicates a second-order coefficient of a phase function of an object-side surface of the foremost metalens, MS2 indicates a second-order coefficient of a phase function of an image-side surface of the foremost metalens, f12 indicates a combined focal length of the first lens and the second lens, and f34 indicates a combined focal length of the third lens and the fourth lens.

The above-described conditional expressions may indicate numerical ranges for optimizing refractive power of the foremost metalens and refractive powers of the first to fourth lenses.

An imaging lens system according to a seventh aspect of the present disclosure may include at least two of the features of the imaging lens systems according to the above aspects. For example, the imaging lens system according to this aspect may include the feature of the first aspect and satisfy at least one of the conditional expressions according to the fifth or sixth aspect. In another example, the imaging lens system according to this aspect may include at least one of the features of the second to fourth aspects and satisfy at least one of the conditional expressions according to the fifth or sixth aspect.

The imaging lens system according to the present specification may further include at least one lens having the following features as necessary. For example, the imaging lens system according to the first aspect may include one of the first to fifth lenses having the following features. In another example, the imaging lens system according to the second to seventh aspects may include at least one of the first to fifth lenses having the following features. However, the imaging lens system according to the above aspects is not necessarily required to include the lenses having the following features. Hereinafter, the features of the first to fifth lenses are described.

The first lens has refractive power. For example, the first lens may have positive or negative refractive power. The first lens may have a predetermined refractive index. For example, the refractive index of the first lens may be greater than 1.4. In a specific example, the refractive index of the first lens may be greater than 1.4 and less than 1.6. The first lens may have a predetermined Abbe number. For example, the Abbe number of the first lens may be 50 or more.

The second lens has refractive power. For example, the second lens may have positive or negative refractive power. The second lens may have a predetermined refractive index and a predetermined Abbe number. For example, the refractive index of the second lens may be greater than 1.4, and the Abbe number of the second lens may be greater than 20. In a specific example, when the second lens has positive refractive power, the refractive index of the second lens may be 1.4 or more, and the Abbe number of the second lens may be 60 or more. In another example, when the second lens has negative refractive power, the refractive index of the second lens may be 1.6 or more, and the Abbe number of the second lens may be less than 30.

The third lens has refractive power. For example, the third lens may have positive or negative refractive power. The third lens may have a predetermined refractive index. For example, the refractive index of the third lens may be greater than 1.4. In a specific example, the refractive index of the third lens may be greater than 1.4 and less than 1.6. The third lens may have a predetermined Abbe number. For example, the Abbe number of the third lens may be 50 or more.

The fourth lens has refractive power. For example, the fourth lens may have positive or negative refractive power. The fourth lens may have a predetermined refractive index. For example, the refractive index of the fourth lens may be greater than 1.4. In a specific example, the refractive index of the fourth lens may be greater than 1.4 and less than 1.6. The fourth lens may have a predetermined Abbe number. For example, the Abbe number of the fourth lens may be 50 or more.

The fifth lens has refractive power. For example, the fifth lens may have positive or negative refractive power. The fifth lens may have a predetermined refractive index. For example, the refractive index of the fifth lens may be greater than 1.4. In a specific example, the refractive index of the fifth lens may be greater than 1.4 and less than 1.6. The fifth lens may have a predetermined Abbe number. For example, the Abbe number of the fifth lens may be 50 or more.

At least one of the first to fifth lenses may be a metalens. For example, the first lens or the second lens may be a metalens. In another example, the fourth lens may be a metalens. A metalens among the first to fifth lenses may include a unique feature. For example, a metalens among the first to fifth lenses may have positive refractive power.

A metalens may include nanostructures. For example, the metalens may include the nanostructures, a band pass filter, and a substrate. The nanostructures may transmit light in a specific wavelength band. The nanostructures may be arranged in a first direction and a second direction intersecting an optical axis. The nanostructures may have forms such as polygonal prisms or circular columns having predetermined heights and cross-sectional areas. However, the form of the nanostructures is not limited to polygonal prisms or circular columns.

At least one lens of the lens group included in the imaging lens system, the first to fifth lenses, or the second to fourth lenses may have negative refractive power. For example, the first lens may have negative refractive power. In another example, the second lens may have negative refractive power. One pair of adjacent lenses among the first to fifth lenses may have positive refractive power. For example, the first lens and the second lens may both have positive refractive power. In another example, the second lens and the third lens may both have positive refractive power. In yet another example, the third lens and the fourth lens may both have positive refractive power.

Each of the first to fifth lenses may have a spherical shape or an aspherical shape as necessary. The aspherical shape of each of the first to fifth lenses may be expressed by Equation 1.

In Equation 1, c is a curvature of a lens surface and is equal to a reciprocal of a radius of curvature of the lens surface at an optical axis of the lens surface, k is a conic constant, r is a distance from any point on the lens surface to the optical axis of the lens surface in a direction perpendicular to the optical axis of the lens surface, A to H and J are aspheric constants, and Z (also known as SAG) is a distance in a direction parallel to the optical axis of the lens surface from the point on the lens surface at the distance r from the optical axis of the lens surface to a tangential plane perpendicular to the optical axis and intersecting a vertex of the lens surface.

The imaging lens system according to the above-described example embodiments or aspects may further include a filter. The filter may be disposed between the rearmost lens (the fifth lens) and the image plane. The filter may block light of a specific wavelength. For reference, the filter described in the present specification may block infrared light, and the wavelength of light blocked by the filter is not limited to infrared light.

Hereinafter, a specific example embodiment of the imaging lens system according to the present disclosure is described with reference to the drawings.

1 10 FIGS.to First, an imaging lens system according to a first example embodiment is described with reference to.

100 100 100 110 120 130 140 150 An imaging lens systemmay include a lens group. For example, the imaging lens systemmay include one lens group disposed between an object and an image plane IP. The lens group may include at least one lens. For example, the lens group of the imaging lens systemmay include a first lens, a second lens, a third lens, a fourth lens, and a fifth lens.

110 150 110 120 130 140 150 Each of the first lensto the fifth lensmay have predetermined refractive power. For example, the first lensmay have positive refractive power, the second lensmay have positive refractive power, the third lensmay have negative refractive power, the fourth lensmay have positive refractive power, and the fifth lensmay have negative refractive power.

100 100 110 150 110 150 The imaging lens systemmay include at least one metalens. For example, in the imaging lens systemaccording to this example embodiment, the first lensto the fifth lensmay all be metalenses. The first lensto the fifth lensthat are metalenses may have substantially planar object-side and image-side surfaces.

110 120 130 140 150 110 120 130 140 150 110 120 130 140 150 7 9 FIGS.to 7 9 FIGS.to Each of the metalenses,,,, andmay have a unique form. For example, as illustrated in, each of the metalenses,,,, andmay be formed in a quadrangular shape, a rectangular shape, or a circular shape. However, the metalenses,,,, andare not limited to the forms illustrated in.

110 120 130 140 150 110 120 130 140 150 12 14 16 18 12 14 16 18 12 14 16 18 12 16 14 18 Each of the metalenses,,,, andmay be partitioned into a plurality of regions. For example, each of the metalenses,,,, andmay include a first regionof a blue wavelength, a second regionof a green wavelength, a third regionof a red wavelength, and a fourth regionof a green wavelength. The first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength may be disposed in a predetermined form. For example, the first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength may be sequentially formed about an optical axis in the clockwise direction or the counterclockwise direction. In another example, the first regionof a blue wavelength may be disposed to be symmetrical to the regionof a red wavelength about the optical axis, and the second regionof a green wavelength may be disposed to be symmetrical to the fourth regionof a green wavelength about the optical axis.

100 150 900 The imaging lens systemmay include a filter IF and the image plane IP. The filter IF may be disposed between the fifth lensand the image plane IP. The image plane IP may be formed on an image sensor.

900 110 120 130 140 150 900 900 910 920 930 940 910 920 930 940 910 920 930 940 910 930 920 940 10 FIG. The image sensoraccording to this example embodiment may have features similar to those of the metalenses,,,, and. For example, as illustrated in, the image sensormay be partitioned into a plurality of regions. In a specific example, the image sensormay include a first regionof a blue wavelength, a second regionof a green wavelength, a third regionof a red wavelength, and a fourth regionof a green wavelength. The first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength may be disposed in a predetermined form. For example, the first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength may be sequentially formed about the optical axis in the clockwise direction or the counterclockwise direction. In another example, the first regionof a blue wavelength may be disposed to be symmetrical to the regionof a red wavelength about the optical axis, and the second regionof a green wavelength may be disposed to be symmetrical to the fourth regionof a green wavelength about the optical axis.

910 920 930 940 900 12 18 110 120 130 140 150 910 900 12 110 120 130 140 150 920 940 900 14 18 110 120 130 140 150 930 900 16 110 120 130 140 150 The first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength of the image sensormay independently converge light emitted from the first to fourth regionstoof the metalenses,,,, and. For example, the first regionof the image sensorcorresponding to a blue wavelength may image light refracted by the first regionsof the metalenses,,,, and, the second regionand the fourth regionof the image sensorcorresponding to a green wavelength may image light refracted by the second regionsand the fourth regionsof the metalenses,,,, and, and the third regionof the image sensorcorresponding to a red wavelength may image light refracted by the third regionsof the metalenses,,,, and.

100 110 120 130 140 150 100 110 120 130 140 150 100 The imaging lens systemconfigured as described above may independently converge light of a blue wavelength, a green wavelength, and a red wavelength through at least one of the metalenses,,,, andto implement a clear image. In addition, the imaging lens systemaccording to this example embodiment includes the thin metalenses,,,, and, thereby significantly reducing a size of the imaging lens system.

2 4 6 FIGS.,, and 100 100 100 illustrate aberration feature of the imaging lens systemaccording to this example embodiment. Tables 1 to 3 show lens features of the imaging lens systemaccording to this example embodiment, and Tables 4 to 6 show phase function values of the imaging lens systemaccording to this example embodiment.

TABLE 1 Surface Radius of Thickness/ Refractive Abbe Focal No. Configuration Curvature Distance Index Number Length S1 First lens infinity 0.21 1.4564 67.7954 33.027 S2 infinity 0.1099 1 0 S3 Second infinity 0.21 1.4564 67.7954 2.783 lens S4 infinity 0.173 1 0 S5 Third lens infinity 0.21 1.4564 67.7954 −9.652 S6 infinity 0.8093 1 0 S7 Fourth infinity 0.17 1.4564 67.7954 1.819 lens S8 infinity 0.0496 1 0 S9 Fifth lens infinity 0.0782 1.4564 67.7954 −1.988 S10 infinity 0.483 1 0 S11 Filter infinity 0.11 1.5143 64.1664 S12 infinity 1.0871 1 0 S13 Image infinity 0 1 0 plane

TABLE 2 Surface Radius of Thickness/ Refractive Abbe Focal No. Configuration Curvature Distance Index Number Length S1 First lens infinity 0.21 1.4601 67.7954 19.161 S2 infinity 0.1242 1 0 S3 Second lens infinity 0.21 1.4601 67.7954 3.171 S4 infinity 0.1726 1 0 S5 Third lens infinity 0.21 1.4601 67.7954 −15.702 S6 infinity 0.7688 1 0 S7 Fourth lens infinity 0.17 1.4601 67.7954 1.43 S8 infinity 0.05 1 0 S9 Fifth lens infinity 0.1043 1.4601 67.7954 −1.526 S10 infinity 0.501 1 0 S11 Filter infinity 0.11 1.5187 64.1664 S12 infinity 1.069 1 0 S13 Image plane infinity 0 1 0

TABLE 3 Surface Radius of Thickness/ Refractive Abbe Focal No. Configuration Curvature Distance Index Number Length S1 First lens infinity 0.21 1.4667 67.7954 38.616 S2 infinity 0.1094 1 0 S3 Second lens infinity 0.21 1.4667 67.7954 2.702 S4 infinity 0.1697 1 0 S5 Third lens infinity 0.21 1.4667 67.7954 −9.117 S6 infinity 0.8087 1 0 S7 Fourth lens infinity 0.17 1.4667 67.7954 1.68 S8 infinity 0.0519 1 0 S9 Fifth lens infinity 0.0803 1.4667 67.7954 −1.832 S10 infinity 0.4815 1 0 S11 Filter infinity 0.11 1.5267 64.1664 S12 infinity 1.0885 1 0 S13 Image plane infinity 0 1 0

TABLE 4 Surface No. K/2nd K/2nd 4th 6th 8th 10th 12th 14th S1 −0.1121 −0.1121 0.3091 −0.0163 0.0298 −0.0993 −0.0275 0.0344 S2 0.1002 0.1002 −0.521 0.3152 −0.0853 0.0012 0.0422 0.0059 S3 −0.4902 −0.4902 0.2633 −0.1732 0.0167 0.0547 0.0036 −0.0152 S4 0.3617 0.3617 −0.2032 −0.0169 −0.0276 −0.0459 0.0092 0.0038 S5 0.176 0.176 −0.095 0.0222 −0.1048 −0.0181 −0.0149 −0.0143 S6 −0.1182 −0.1182 0.1934 0.0705 0.1861 0.0013 0.2782 0.1858 S7 0.2255 0.2255 0.0396 −0.0728 0.019 0.0068 −0.0029 −0.001 S8 −0.4754 −0.4754 0.0882 0.0602 −0.0226 −0.0059 −0.0027 0.0013 S9 0.4593 0.4593 −0.203 0.0248 0.0274 −0.0029 −0.0025 0.0008 S10 −0.198 −0.198 0.0699 −0.0321 −0.0086 0.0022 0.002 0.0004 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0 Surface No. 16th 18th 20th 22nd 24th 26th 28th 30th S1 0.024 −0.0019 −0.0082 0 0 0 0 0 S2 −0.0301 −0.0274 0.0241 0 0 0 0 0 S3 0.0058 0.0221 −0.0007 0 0 0 0 0 S4 0.0062 0.0105 −0.0063 0 0 0 0 0 S5 0.033 0.0605 −0.0453 0 0 0 0 0 S6 −0.4433 −0.5202 1.963 0 0 0 0 0 S7 0.0002 0.0002 0 0 0 0 0 0 S8 0.0008 −0.0002 0 0 0 0 0 0 S9 0.0005 −0.0005 0.0001 0 0 0 0 0 S10 −0.0007 0.0002 0 0 0 0 0 0 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0

TABLE 5 Surface No. K 2nd 4th 6th 8th 10th 12th 14th S1 −0.1236 −0.1236 0.3061 −0.0116 0.0245 −0.0763 −0.0293 0.0216 S2 0.1011 0.1011 −0.5113 0.2868 −0.0759 0.002 0.0319 0.0027 S3 −0.4691 −0.4691 0.255 −0.149 −0.0001 0.0589 0.0097 −0.0161 S4 0.36 0.36 −0.2151 0.0067 −0.0288 −0.0562 0.0091 0.0112 S5 0.1523 0.1523 −0.058 −0.0221 −0.087 −0.0164 −0.0053 −0.0026 S6 −0.1154 −0.1154 0.171 0.0747 0.167 0.1363 0.1109 −0.0179 S7 0.2372 0.2372 0.0422 −0.0737 0.0111 0.0091 −0.0031 −0.0006 S8 −0.5561 −0.5561 0.116 0.0541 −0.0215 −0.0053 −0.0026 0.0013 S9 0.5939 0.5939 −0.2436 0.0294 0.0273 −0.0026 −0.0024 0.0009 S10 −0.2454 −0.2454 0.0675 −0.0214 −0.0098 0.0018 0.0017 0.0005 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0 Surface No. 16th 18th 20th 22nd 24th 26th 28th 30th S1 0.0209 0.0059 −0.0097 0 0 0 0 0 S2 −0.0209 −0.0172 0.015 0 0 0 0 0 S3 0.0009 0.0184 0.0017 0 0 0 0 0 S4 0.0075 0.0039 −0.0041 0 0 0 0 0 S5 0.0202 0.0318 −0.0224 0 0 0 0 0 S6 −0.2188 −0.0179 1.2811 0 0 0 0 0 S7 0 0.0001 0 0 0 0 0 0 S8 0.0008 −0.0002 0 0 0 0 0 0 S9 0.0004 −0.0005 0.0001 0 0 0 0 0 S10 −0.0007 0.0002 0 0 0 0 0 0 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0

TABLE 6 Surface No. K 2nd 4th 6th 8th 10th 12th 14th S1 −0.1191 −0.1191 0.3049 −0.011 0.0204 −0.0823 −0.0289 0.0248 S2 0.1099 0.1099 −0.5141 0.2959 −0.0771 0.0019 0.0339 0.0034 S3 −0.512 −0.512 0.2698 −0.1562 0.0079 0.0566 0.0062 −0.0157 S4 0.3831 0.3831 −0.2358 −0.0053 −0.0235 −0.0492 0.011 0.0085 S5 0.2064 0.2064 −0.096 0.0077 −0.1038 −0.0258 −0.0096 0.0009 S6 −0.1431 −0.1431 0.2049 0.0431 0.2488 0.0637 0.0041 0.0502 S7 0.2074 0.2074 0.036 −0.0643 0.0126 0.0087 −0.003 −0.0007 S8 −0.4818 −0.4818 0.0922 0.0576 −0.0228 −0.0058 −0.0026 0.0013 S9 0.5302 0.5302 −0.2153 0.0258 0.0269 −0.0029 −0.0024 0.0009 S10 −0.2431 −0.2431 0.0724 −0.028 −0.0086 0.0022 0.0016 0.0005 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0 Surface No. 16th 18th 20th 22nd 24th 26th 28th 30th S1 0.0221 0.0047 −0.0105 0 0 0 0 0 S2 −0.023 −0.0196 0.0178 0 0 0 0 0 S3 0.0036 0.0201 −0.0007 0 0 0 0 0 S4 0.0048 0.0042 −0.0033 0 0 0 0 0 S5 0.0357 0.0494 −0.0447 0 0 0 0 0 S6 0.072 0.2223 0.5888 0 0 0 0 0 S7 0 0.0001 0 0 0 0 0 0 S8 0.0009 −0.0002 0 0 0 0 0 0 S9 0.0004 −0.0005 0.0001 0 0 0 0 0 S10 −0.0008 0.0002 0 0 0 0 0 0 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0

11 16 FIGS.to Hereinafter, an imaging lens system according to a second example embodiment is described with reference to.

200 200 200 210 220 230 240 250 An imaging lens systemmay include a lens group. For example, the imaging lens systemmay include one lens group disposed between an object and an imaging plane IP. The lens group may include at least one lens. For example, the lens group of the imaging lens systemmay include a first lens, a second lens, a third lens, a fourth lens, and a fifth lens.

210 250 210 220 230 240 250 Each of the first lensto the fifth lensmay have predetermined refractive power. For example, the first lenshas negative refractive power, the second lenshas positive refractive power, the third lenshas positive refractive power, the fourth lenshas negative refractive power, and the fifth lensmay have positive refractive power.

210 230 210 230 Each of the first lensand the third lensmay have one surface in a convex or concave shape. For example, the first lensmay have a convex object-side surface and a concave image-side surface, and the third lensmay have a convex object-side surface and a convex image-side surface.

200 200 220 240 250 220 240 250 The imaging lens systemmay include at least one metalens. For example, in the imaging lens systemaccording to this example embodiment, the second lens, the fourth lens, and the fifth lensmay be metalenses. The object-side surfaces and image-side surfaces of the second lens, the fourth lens, and the fifth lensthat are metalenses may be substantially planar.

220 240 250 220 240 250 220 240 250 7 9 FIGS.to 7 9 FIGS.to Each of the metalenses,, andmay have a unique form. For example, as illustrated in, each of the metalenses,, andmay be formed in a quadrangular shape, a rectangular shape, or a circular shape. However, the metalenses,, andare not limited to the forms illustrated in.

220 240 250 220 240 250 12 14 16 18 12 14 16 18 12 14 16 18 12 16 14 18 The metalenses,, andmay be partitioned into a plurality of regions. For example, each of the metalenses,, andmay include a first regionof a blue wavelength, a second regionof a green wavelength, a third regionof a red wavelength, and a fourth regionof a green wavelength. The first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength may be disposed in a predetermined form. For example, the first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength may be sequentially formed about the optical axis in the clockwise direction or the counterclockwise direction. In another example, the first regionof a blue wavelength may be disposed to be symmetrical to the third regionof a red wavelength about the optical axis, and the second regionof a green wavelength may be disposed to be symmetrical to the fourth regionof a green wavelength about the optical axis.

200 250 900 The imaging lens systemmay include a filter IF and an imaging plane IP. The filter IF may be disposed between the fifth lensand the imaging plane IP. The imaging plane IP may be formed on an image sensor.

900 220 240 250 900 900 910 920 930 940 910 920 930 940 910 920 930 940 910 930 920 940 10 FIG. The image sensoraccording to this example embodiment may have features similar to those of the metalenses,, and. For example, as illustrated in, the image sensormay be partitioned into a plurality of regions. In a specific example, the image sensormay include a first regionof a blue wavelength, a second regionof a green wavelength, a third regionof a red wavelength, and a fourth regionof a green wavelength. The first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength may be disposed in a predetermined form. For example, the first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength may be sequentially formed about the optical axis in the clockwise direction or the counterclockwise direction. In another example, the first regionof a blue wavelength may be disposed to be symmetrical to the third regionof a red wavelength about the optical axis, and the second regionof a green wavelength may be disposed to be symmetrical to the fourth regionof a green wavelength about the optical axis.

910 920 930 940 900 12 18 220 240 250 910 900 12 220 240 250 920 940 900 14 18 220 240 250 930 900 16 220 240 250 The first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength of the image sensormay independently converge light emitted from the first regionsto the fourth regionsof the metalenses,, and. For example, the first regionof the image sensorcorresponding to a blue wavelength may image light refracted by the first regionsof the metalenses,, and, the second regionand the fourth regionof the image sensorcorresponding to a green wavelength may image light refracted by the second regionsand the fourth regionsof the metalenses,, and, and the third regionof the image sensorcorresponding to a red wavelength may image light refracted by the third regionsof the metalenses,, and.

200 220 240 250 200 220 240 250 200 The imaging lens systemconfigured as described above may independently converge light of a blue wavelength, a green wavelength, and a red wavelength through at least one of the metalenses,, andto implement a clear image. In addition, the imaging lens systemaccording to this example embodiment includes the thin metalenses,, and, thereby significantly reducing a size of the imaging lens system.

12 14 16 FIGS.,, and 200 200 200 illustrate aberration features of the imaging lens systemaccording to this example embodiment. Tables 7 to 9 show lens features of the imaging lens systemaccording to this example embodiment, and Tables 10 to 12 show phase function values of the imaging lens systemaccording to this example embodiment.

TABLE 7 Surface Radius of Thickness/ Refractive Abbe Focal No. Configuration Curvature Distance Index Number Length S1 First lens 1.6956 0.1604 1.5411 55.9901 −11.731 S2 1.2937 0.1067 1 0 S3 Second lens infinity 0.1492 1.4564 67.7954 1.555 S4 infinity 0.02 1 0 S5 Third lens 20.5697 0.21 1.5411 55.9901 7.018 S6 −4.6409 0.02 1 0 S7 Fourth lens infinity 0.2588 1.4564 67.7954 −2.162 S8 infinity 0.3077 1 0 S9 Fifth lens infinity 0.2203 1.4564 67.7954 20.784 S10 infinity 0.0501 1 0 S11 Filter infinity 0.21 1.5143 64.1664 S12 infinity 2.0869 1 0 S13 Image plane infinity 0 1 0

TABLE 8 Surface Radius of Thickness/ Refractive Abbe Focal No. Configuration Curvature Distance Index Number Length S1 First lens 1.6956 0.16 1.5463 55.9901 −11.626 S2 1.2946 0.106 1 0 S3 Second lens infinity 0.15 1.4601 67.7954 1.559 S4 infinity 0.02 1 0 S5 Third lens 20.4385 0.21 1.5463 55.9901 6.93 S6 −4.6296 0.02 1 0 S7 Fourth lens infinity 0.261 1.4601 67.7954 −2.120 S8 infinity 0.3065 1 0 S9 Fifth lens infinity 0.2191 1.4601 67.7954 17.926 S10 infinity 0.0501 1 0 S11 Filter infinity 0.21 1.5187 64.1664 S12 infinity 2.0873 1 0 S13 Image plane infinity 0 1 0

TABLE 9 Surface Radius of Thickness/ Refractive Abbe Focal No. Configuration Curvature Distance Index Number Length S1 First lens 1.6956 0.16 1.5563 55.9901 −11.632 S2 1.2942 0.1069 1 0 S3 Second lens infinity 0.1491 1.4667 67.7954 1.553 S4 infinity 0.02 1 0 S5 Third lens 19.7916 0.2121 1.5563 55.9901 6.532 S6 −4.4337 0.0221 1 0 S7 Fourth lens infinity 0.2484 1.4667 67.7954 −2.129 S8 infinity 0.3171 1 0 S9 Fifth lens infinity 0.2171 1.4667 67.7954 20.401 S10 infinity 0.0501 1 0 S11 Filter infinity 0.21 1.5267 64.1664 S12 infinity 2.0869 1 0 S13 Image plane infinity 0 1 0

TABLE 10 Surface No. K 2nd 4th 6th 8th 10th 12th 14th S1 0 0 −0.5641 0.3281 −4.4809 25.5872 −68.9453 108.2233 S2 0 0 −0.6011 0.3818 −9.5525 63.6395 −216.7249 431.9019 S3 −0.6914 −0.6914 0.2153 0.0681 0.2369 0.1534 0.0108 −0.0824 S4 0.431 0.431 −0.2999 −0.1691 −0.1521 −0.0774 0.0088 0.057 S5 0 0 −0.1051 −0.4025 −2.5125 29.5416 −99.7721 183.2575 S6 0 0 −0.2161 0.3945 −2.517 36.4305 −178.0909 461.6841 S7 0.27 0.27 −0.4548 0.087 0.1934 −0.0111 −0.2324 −0.1501 S8 −0.0353 −0.0353 0.5284 0.1406 −0.6239 0.4743 2.008 2.1284 S9 0.4313 0.4313 −0.2214 0.2132 −0.1374 −0.0951 0.1171 0.118 S10 −0.4028 −0.4028 0.0778 −0.0341 0.0108 −0.0074 0.0046 0.0079 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0 Surface No. 16th 18th 20th 22nd 24th 26th 28th 30th S1 −101.1052 52.0679 −11.3498 0 0 0 0 0 S2 −504.3267 319.8267 −84.8509 0 0 0 0 0 S3 −0.0973 −0.0571 −0.0357 0 0 0 0 0 S4 0.0685 0.0582 0.0307 0 0 0 0 0 S5 −205.0853 131.4258 −36.3286 0 0 0 0 0 S6 −687.7211 552.3773 −183.9733 0 0 0 0 0 S7 0.0762 0.2324 −0.1467 0 0 0 0 0 S8 −5.1773 −9.1021 13.7677 0 0 0 0 0 S9 −0.1023 −0.0825 0.064 0 0 0 0 0 S10 −0.0118 0.0055 −0.0009 0 0 0 0 0 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0

TABLE 11 Surface No. K 2nd 4th 6th 8th 10th 12th 14th S1 0 0 −0.5641 0.3281 −4.4809 25.5872 −68.9453 108.2233 S2 0 0 −0.6011 0.3818 −9.5525 63.6395 −216.7249 431.9019 S3 −0.6951 −0.6951 0.2153 0.0682 0.2375 0.1533 0.0066 −0.0903 S4 0.4367 0.4367 −0.3024 −0.1709 −0.1501 −0.0747 0.0106 0.0574 S5 0 0 −0.1051 −0.4025 −2.5125 29.5416 −99.7721 183.2575 S6 0 0 −0.2161 0.3945 −2.517 36.4305 −178.0909 461.6841 S7 0.2639 0.2639 −0.4478 0.0898 0.1904 −0.0154 −0.2361 −0.1508 S8 −0.0256 −0.0256 0.5239 0.1427 −0.63 0.4647 1.9928 2.1567 S9 0.4316 0.4316 −0.2202 0.212 −0.1373 −0.0947 0.1174 0.118 S10 −0.4068 −0.4068 0.0786 −0.0345 0.0109 −0.0073 0.0046 0.0079 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0 Surface No. 16th 18th 20th 22nd 24th 26th 28th 30th S1 −101.1052 52.0679 −11.3498 0 0 0 0 0 S2 −504.3267 319.8267 −84.8509 0 0 0 0 0 S3 −0.1043 −0.0558 −0.0158 0 0 0 0 0 S4 0.0676 0.0559 0.0269 0 0 0 0 0 S5 −205.0853 131.4258 −36.3286 0 0 0 0 0 S6 −687.7211 552.3773 −183.9733 0 0 0 0 0 S7 0.0825 0.2413 −0.129 0 0 0 0 0 S8 −4.9923 −8.7698 12.4733 0 0 0 0 0 S9 −0.1025 −0.083 0.0644 0 0 0 0 0 S10 −0.0118 0.0055 −0.0009 0 0 0 0 0 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0

TABLE 12 Surface No. K 2nd 4th 6th 8th 10th 12th 14th S1 0 0 −0.5641 0.3281 −4.4809 25.5872 −68.9453 108.2233 S2 0 0 −0.6011 0.3818 −9.5525 63.6395 −216.7249 431.9019 S3 −0.7117 −0.7117 0.2236 0.0708 0.2397 0.1435 0.0069 −0.0699 S4 0.4556 0.4556 −0.3077 −0.1811 −0.1555 −0.0727 0.0172 0.061 S5 0 0 −0.1051 −0.4025 −2.5125 29.5416 −99.7721 183.2575 S6 0 0 −0.2161 0.3945 −2.517 36.4305 −178.0909 461.6841 S7 0.2985 0.2985 −0.5105 0.1388 0.2099 −0.0619 −0.3033 −0.1536 S8 −0.0578 −0.0578 0.5458 0.1651 −0.7146 0.4545 2.2287 2.4722 S9 0.4258 0.4258 −0.2044 0.2059 −0.1373 −0.0956 0.1158 0.1176 S10 −0.3999 −0.3999 0.0728 −0.033 0.011 −0.0074 0.0046 0.0079 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0 Surface No. 16th 18th 20th 22nd 24th 26th 28th 30th S1 −101.1052 52.0679 −11.3498 0 0 0 0 0 S2 −504.3267 319.8267 −84.8509 0 0 0 0 0 S3 −0.0752 −0.0493 −0.0795 0 0 0 0 0 S4 0.0644 0.0499 0.0339 0 0 0 0 0 S5 −205.0853 131.4258 −36.3286 0 0 0 0 0 S6 −687.7211 552.3773 −183.9733 0 0 0 0 0 S7 0.1849 0.4479 −0.4294 0 0 0 0 0 S8 −5.7445 −9.8319 14.8318 0 0 0 0 0 S9 −0.0996 −0.0788 0.0601 0 0 0 0 0 S10 −0.0119 0.0054 −0.0009 0 0 0 0 0 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0 17 22 FIGS.to Hereinafter, an imaging lens system according to a third example embodiment is described with reference to.

300 300 300 310 320 330 340 350 An imaging lens systemmay include a lens group. For example, the imaging lens systemmay include one lens group disposed between an object and an image plane IP. The lens group may include at least one lens. For example, the lens group of the imaging lens systemmay include a first lens, a second lens, a third lens, a fourth lens, and a fifth lens.

310 350 310 320 330 340 350 Each of the first lensto the fifth lensmay have predetermined refractive power. For example, the first lensmay have positive refractive power, the second lensmay have negative refractive power, the third lensmay have positive refractive power, the fourth lensmay have positive refractive power, and the fifth lensmay have positive refractive power.

320 330 350 320 330 350 Each of the second lens, the third lens, and the fifth lensmay have one surface in a convex or concave shape. For example, the second lensmay have a concave object-side surface and a convex image-side surface, the third lensmay have a convex object-side surface and a concave image-side surface, and the fifth lensmay have a concave object-side surface and a convex image-side surface.

300 300 310 340 310 340 The imaging lens systemmay include at least one metalens. For example, in the imaging lens systemaccording to this example embodiment, the first lensand the fourth lensmay be metalenses. The object-side surfaces and image-side surfaces of the first lensand the fourth lensthat are metalenses may be substantially planar.

310 340 310 340 310 340 7 9 FIGS.to 7 9 FIGS.to Each of the metalensesandmay have a unique form. For example, as illustrated in, each of the metalensesandmay be formed in a quadrangular shape, a rectangular shape, or a circular shape. However, the metalensesandare not limited to the forms illustrated in.

310 340 310 340 12 14 16 18 12 14 16 18 12 14 16 18 12 16 14 18 Each of the metalensesandmay be partitioned into a plurality of regions. For example, each of the metalensesandmay include a first regionof a blue wavelength, a second regionof a green wavelength, a third regionof a red wavelength, and a fourth regionof a green wavelength. The first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength may be disposed in a predetermined form. For example, the first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength may be sequentially formed about the optical axis in the clockwise direction or the counterclockwise direction. In another example, the first regionof a blue wavelength may be disposed to be symmetrical to the third regionof a red wavelength about the optical axis, and the second regionof a green wavelength may be disposed to be symmetrical to the fourth regionof a green wavelength about the optical axis.

300 350 900 The imaging lens systemmay include a filter IF and an image plane IP. The filter IF may be disposed between the fifth lensand the image plane IP. The image plane IP may be formed on an image sensor.

900 310 340 900 900 910 920 930 940 910 920 930 940 910 920 930 940 910 930 920 940 10 FIG. The image sensoraccording to this example embodiment may have features similar to those of the metalensesand. For example, as illustrated in, the image sensormay be partitioned into a plurality of regions. In a specific example, the image sensormay include a first regionof a blue wavelength, a second regionof a green wavelength, a third regionof a red wavelength, and a fourth regionof a green wavelength. The first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength may be disposed in a predetermined form. For example, the first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength may be sequentially formed about the optical axis along the clockwise direction or the counterclockwise direction. In another example, the first regionof a blue wavelength may be disposed to be symmetrical to the third regionof a red wavelength about the optical axis, and the second regionof a green wavelength may be disposed to be symmetrical to the fourth regionof a green wavelength about the optical axis.

910 920 930 940 900 12 18 320 240 250 910 900 12 310 340 920 940 900 14 18 310 340 930 900 16 310 340 The first regionof a blue wavelength, the second regionof a green wavelength, the third regionof a red wavelength, and the fourth regionof a green wavelength of the image sensormay independently converge light emitted from the first regionto the fourth regionof the metalenses,, and. For example, the first regionof the image sensorcorresponding to a blue wavelength may image light refracted by the first regionsof the metalensesand, the second regionand the fourth regionof the image sensorcorresponding to a green wavelength may image light refracted by the second regionsand the fourth regionsof the metalensesand, and the third regionof the image sensorcorresponding to a red wavelength may image light refracted by the third regionsof the metalensesand.

300 310 340 300 310 340 300 The imaging lens systemconfigured as described above may independently converge light of a blue wavelength, a green wavelength, and a red wavelength through at least one of the metalensesandto implement a clear image. In addition, the imaging lens systemaccording to this example embodiment includes the thin metalensesand, thereby significantly reducing a size of the imaging lens system.

18 20 22 FIGS.,, and 300 300 300 illustrate aberration features of the imaging lens systemaccording to this example embodiment. Tables 13 to 15 show lens features of the imaging lens systemaccording to this example embodiment, and Tables 16 to 18 show phase function values of the imaging lens systemaccording to this example embodiment.

TABLE 13 Surface Radius of Thickness/ Refractive Abbe Focal No. Configuration Curvature Distance Index Number Length S1 First lens infinity 0.166 1.4564 67.7954 6.353 S2 infinity 0.0538 1 0 S3 Second lens −5.3621 0.18 1.6077 25.9363 −19.149 S4 −10.0706 0.02 1 0 S5 Third lens 7.3951 0.213 1.5416 55.9193 144.871 S6 8.082 0.1879 1 0 S7 Fourth lens infinity 0.2387 1.4564 67.7954 5.066 S8 infinity 1.6166 1 0 S9 Fifth lens −9.1758 0.5605 1.5416 55.9193 20.904 S10 −5.1770 0.321 1 0 S11 Filter infinity 0.21 1.5143 64.1664 S12 infinity 0.4324 1 0 S13 Image plane infinity 0 1 0

TABLE 14 Surface Radius of Thickness/ Refractive Abbe Focal No. Configuration Curvature Distance Index Number Length S1 First lens infinity 0.1664 1.4601 67.7954 6.4 S2 infinity 0.0536 1 0 S3 Second lens −5.3863 0.18 1.62 25.9363 −19.132 S4 −9.9926 0.02 1 0 S5 Third lens 7.4941 0.21 1.5468 55.9193 161.291 S6 8.1089 0.1855 1 0 S7 Fourth lens infinity 0.2454 1.4601 67.7954 5.027 S8 infinity 1.6364 1 0 S9 Fifth lens −9.1614 0.5398 1.5468 55.9193 20.705 S10 −5.1692 0.321 1 0 S11 Filter infinity 0.21 1.5187 64.1664 S12 infinity 0.432 1 0 S13 Image plane infinity 0 1 0

TABLE 15 Surface Radius of Thickness/ Refractive Abbe Focal No. Configuration Curvature Distance Index Number Length S1 First lens infinity 0.1673 1.4667 67.7954 6.354 S2 infinity 0.0531 1 0 S3 Second lens −5.4338 0.18 1.6461 25.9363 −18.399 S4 −10.1390 0.02 1 0 S5 Third lens 7.5061 0.21 1.5568 55.9193 152.535 S6 8.1514 0.1839 1 0 S7 Fourth lens infinity 0.2498 1.4667 67.7954 5.023 S8 infinity 1.6556 1 0 S9 Fifth lens −9.2557 0.5173 1.5568 55.9193 20.357 S10 −5.1970 0.321 1 0 S11 Filter infinity 0.21 1.5267 64.1664 S12 infinity 0.432 1 0 S13 Image plane infinity 0 1 0

TABLE 16 Surface No. K 2nd 4th 6th 8th 10th 12th 14th S1 −0.453 −0.453 0.1718 −0.1076 0.1183 −0.1611 0.0899 0.0542 S2 0.4174 0.4174 −0.1185 0.2153 −1.1703 1.9864 4.9138 −16.0808 S3 9.7159 9.7159 0.2655 −0.5597 −3.4914 25.0949 −76.4289 150.6597 S4 95 95 0.2566 −3.6373 16.7154 −44.065 72.0558 −72.0981 S5 10.1486 10.1486 0.4203 −3.4716 18.3225 −56.8629 108.0064 −126.1948 S6 74.4885 74.4885 0.2955 −0.1228 −0.4727 2.1787 −10.1001 26.518 S7 −0.0485 −0.0485 −0.1979 −0.0154 −0.0395 −0.0047 0.0559 0.029 S8 −0.051 −0.051 0.1497 0.0508 0.0399 0.0192 0.0205 0.0062 S9 −61.324 −61.324 −0.0485 −0.0084 0.027 −0.0503 0.0502 −0.0291 S10 −28.4609 −28.4609 −0.0518 0.0185 −0.0288 0.0291 −0.0203 0.0091 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0 Surface No. 16th 18th 20th 22nd 24th 26th 28th 30th S1 −0.0351 −0.0518 0.0331 0 0 0 0 0 S2 3.9339 22.6852 −17.5137 0 0 0 0 0 S3 −208.8479 181.7386 −70.6699 0 0 0 0 0 S4 39.5528 −6.2543 −2.9462 0 0 0 0 0 S5 85.5942 −28.0022 1.8444 0 0 0 0 0 S6 −37.4795 27.5536 −8.5353 0 0 0 0 0 S7 −0.1144 −0.1866 0.2715 0 0 0 0 0 S8 0.0042 0.069 0.0147 0 0 0 0 0 S9 0.0098 −0.0017 0.0001 0 0 0 0 0 S10 −0.0025 0.0004 0 0 0 0 0 0 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0

TABLE 17 Surface No. K 2nd 4th 6th 8th 10th 12th 14th S1 −0.4537 −0.4537 0.1716 −0.1078 0.1192 −0.1612 0.089 0.0539 S2 0.4189 0.4189 −0.1164 0.2164 −1.1696 1.9863 4.9121 −16.0844 S3 10.0294 10.0294 0.2617 −0.546 −3.4434 24.808 −75.8389 149.5392 S4 95 95 0.2428 −3.4974 16.131 −42.5922 69.1236 −67.1342 S5 6.5773 6.5773 0.4111 −3.3867 18.1003 −57.1468 110.7106 −132.6793 S6 73.9455 73.9455 0.297 −0.1362 −0.3407 1.4229 −7.7243 21.9974 S7 −0.0489 −0.0489 −0.1981 −0.0141 −0.0393 −0.0046 0.0562 0.0293 S8 −0.0514 −0.0514 0.1486 0.0494 0.0401 0.0188 0.0188 0.0051 S9 −61.1288 −61.1288 −0.0486 −0.0072 0.0231 −0.0437 0.0436 −0.0252 S10 −28.3066 −28.3066 −0.0519 0.0186 −0.029 0.029 −0.0201 0.009 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0 Surface No. 16th 18th 20th 22nd 24th 26th 28th 30th S1 −0.0344 −0.0508 0.0323 0 0 0 0 0 S2 3.93 22.6859 −17.4982 0 0 0 0 0 S3 −206.5423 178.8542 −69.2537 0 0 0 0 0 S4 33.4127 −1.824 −4.2743 0 0 0 0 0 S5 93.6877 −33.4415 3.4286 0 0 0 0 0 S6 −32.1549 23.9574 −7.4593 0 0 0 0 0 S7 −0.1145 −0.1873 0.2707 0 0 0 0 0 S8 0.0059 0.0717 0.008 0 0 0 0 0 S9 0.0084 −0.0015 0.0001 0 0 0 0 0 S10 −0.0024 0.0004 0 0 0 0 0 0 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0

TABLE 18 Surface No. K 2nd 4th 6th 8th 10th 12th 14th S1 −0.455 −0.455 0.1719 −0.1082 0.1201 −0.1611 0.0883 0.0535 S2 0.4199 0.4199 −0.1148 0.2164 −1.1694 1.9866 4.9118 −16.086 S3 10.3347 10.3347 0.2561 −0.5416 −3.2808 23.9506 −73.4936 144.9192 S4 94.8736 94.8736 0.232 −3.3806 15.648 −41.4858 67.5928 −65.8723 S5 4.2058 4.2058 0.4056 −3.3501 18.0411 −57.4864 112.6395 −137.1218 S6 73.7887 73.7887 0.2961 −0.1473 −0.244 0.9156 −6.0185 18.3931 S7 −0.0489 −0.0489 −0.1984 −0.0131 −0.0394 −0.0048 0.0563 0.0295 S8 −0.0515 −0.0515 0.1483 0.0489 0.0404 0.0188 0.0179 0.0047 S9 −65.4451 −65.4451 −0.0485 −0.0071 0.0227 −0.0424 0.0419 −0.024 S10 −28.921 −28.921 −0.0522 0.0192 −0.0303 0.0305 −0.0211 0.0094 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0 Surface No. 16th 18th 20th 22nd 24th 26th 28th 30th S1 −0.0339 −0.0501 0.0318 0 0 0 0 0 S2 3.9276 22.685 −17.4906 0 0 0 0 0 S3 −199.6554 172.3659 −66.5829 0 0 0 0 0 S4 32.8436 −1.7639 −4.2139 0 0 0 0 0 S5 99.2453 −37.1593 4.4818 0 0 0 0 0 S6 −27.5192 20.6424 −6.4441 0 0 0 0 0 S7 −0.1142 −0.1871 0.2708 0 0 0 0 0 S8 0.0077 0.0743 0.0024 0 0 0 0 0 S9 0.0079 −0.0014 0.0001 0 0 0 0 0 S10 −0.0025 0.0004 0 0 0 0 0 0 S11 0 0 0 0 0 0 0 0 S12 0 0 0 0 0 0 0 0 S13 0 0 0 0 0 0 0 0

Table 19 shows feature values of the imaging lens system according to first to third example embodiments.

TABLE 19 First Example Embodiment Second Example Embodiment Red Green Blue Red Green Blue Remarks wavelength wavelength wavelength wavelength wavelength wavelength TTL 3.7 3.7 3.7 3.8 3.8 3.8 BFL 1.68 1.68 1.68 2.347 2.347 2.347 f 3.5 3.5 3.5 3.5 3.5 3.5 F number 1.88 1.88 1.88 2.06 2.06 2.06 ImgHT 2.8 2.8 2.8 2.8 2.8 2.8 f12 2.349 2.349 2.349 3.771 3.771 3.771 f34 2.163 2.163 2.163 4.176 4.176 4.176 Third Example Embodiment Red Green Blue Remarks wavelength wavelength wavelength TTL 4.2 4.2 4.2 BFL 0.963 0.963 0.963 f 3.5 3.5 3.5 F number 1.95 1.95 1.95 ImgHT 2.8 2.8 2.8 f12 16.43 16.43 16.43 f34 2.784 2.784 2.784

Table 20 shows values of conditional expressions of the imaging lens system according to first to third example embodiments.

TABLE 20 First Example Embodiment Second Example Embodiment Conditional Red Green Blue Red Green Blue expression wavelength wavelength wavelength wavelength wavelength wavelength f1/f 9.436 5.475 11.033 −3.352 −3.322 −3.323 f2/f 0.795 0.906 0.772 0.444 0.445 0.444 f3/f −2.758 −4.486 −2.605 2.005 1.98 1.866 f4/f 0.52 0.409 0.48 −0.618 −0.606 −0.608 f5/f −0.568 −0.436 −0.523 5.938 5.122 5.829 TTL/f 1.057 1.057 1.057 1.086 1.086 1.086 f1/f2 11.865 6.043 14.293 −7.542 −7.459 −7.492 f2/f3 −0.288 −0.202 −0.296 0.222 0.225 0.238 BFL/f 0.517 0.524 0.518 0.821 0.821 0.823 TTL/2Y 0.661 0.661 0.661 0.679 0.679 0.679 fM/f 9.436 5.475 11.033 0.444 0.445 0.444 fMg/f 9.436 5.475 11.033 0.444 0.445 0.444 MS1 −0.112 −0.124 −0.119 −0.691 −0.695 −0.712 MS2 0.1 0.101 0.11 0.431 0.437 0.456 |f12/f2| 0.844 0.741 0.869 2.424 2.419 2.428 f34/f 0.618 0.618 0.618 1.193 1.193 1.193 Third Example Embodiment Conditional Red Green Blue expression wavelength wavelength wavelength f1/f 1.815 1.829 1.816 f2/f −5.471 −5.466 −5.257 f3/f 41.392 46.083 43.581 f4/f 1.448 1.436 1.435 f5/f 5.973 5.916 5.816 TTL/f 1.2 1.2 1.2 f1/f2 −0.332 −0.335 −0.345 f2/f3 −0.132 −0.119 −0.121 BFL/f 0.897 0.897 0.896 TTL/2Y 0.75 0.75 0.75 fM/f 1.815 1.829 1.816 fMg/f 1.815 1.829 1.816 MS1 −0.453 −0.454 −0.455 MS2 0.417 0.419 0.42 |f12/f2| 0.858 0.859 0.893 f34/f 0.795 0.795 0.795

As set forth above, the present disclosure may provide the imaging lens system capable of the miniaturization and thinning of a camera module.

In addition, the present disclosure may provide the imaging lens system capable of correcting the aberration of a camera module.

While specific examples have been shown and described above, it will be apparent after an understanding of this disclosure that various changes in form and details may be made in these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be considered in a descriptive sense only, and not for purposes of limitation. Descriptions of features or aspects in each example are to be considered as being applicable to similar features or aspects in other examples. Suitable results may be achieved if the described techniques are performed in a different order, and/or if components in a described system, architecture, device, or circuit are combined in a different manner, and/or replaced or supplemented by other components or their equivalents. Therefore, the scope of the disclosure is defined not by the detailed description, but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents are to be construed as being included in the disclosure.